Combined lifting jack and rim tool



1.512.624 M. s. MENI'ZER COMBINED LIFTING JACK AND RIM TOOL Filed Jan. 30, 1924 2 Sheets-Sheet. 1

@ctv Z1 L512 624 M. s. MENTZER COMBINED LIFTING JACK AND RIM TOOL Filed Jan. 30, 1924 2 Sheets-$hee 2 umran STATES PATENT OFFICE.

MERLE S. MENTZER, OFPAWNEE, OKLAHOMA.

COMBINED-LIFTING JAGK.AND RIM TOOL.

Application filed January 30,1924. Serial No.'689,480.

To all w kom it may concern:

Be it known'that I, MERLE'S. ME'NTZER,

a citizen of the United States, residing at Pawnee, in the county of-Pawnee and State of Oklahoma, have invented certain new and useful Improvements in Combined Lifting Jacks and Rim Tools, of which the following is a specification.

'My invention relates to a combined lifting jack and rim tool.

An important object of the invention is tov provide a device of the above mentioned character, which'may be employed to contract or expand a demountable rim, and which is so constructed that the rim engageing elementsmay be readily separated from the jack-portion, whereby the latter may be used as an ordinary jack.

'A" fu"rther object of the invention is to provide a device of the above mentioned character, the several parts of which are adapted to be separated from the jack portion, and adapted for shipment in aifiat condition.

Other objects and advantages of the invention will be apparent during the course of the followingdescription.

In the accompanying drawings forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a perspective view, in the flat position, of the rim engaging device,

*Figure 2 is a perspective view of a coacting rim engagingdevice, I

Figure 3 is a side elevation of the complete apparatus,

Figure 4 is a similar view, at right angles to Figure 3,

- Figure 5. is a side elevation of the device, 7

and, v

Figure 6 is a 'side elevation of the rim engaging aw. v

In the drawlngs, wherein for the purpose of illustration is shown a preferred embodi- -ment of my invention, the numeral 10 designates the tubular standard of a lifting jack,

such as an automobile jack, having a base A loop or frame 12 is formed integral with the top ofthe standard 10. Thenume ral 13 designates a screw, which moves longitudinally within the standard 10 but does-not turn ,uponits longitudinal axis therein, as is the ordinary construction in jacks of this type. The screw 13 is raised or lowered by a gear 14, having screw gear 15, servm g threaded engagement therewith, and held against longitudinal movement within the frame 12. The gear 14 is engaged by a to drive it, and this gear 15 is rotated by a stub shaft 16, as shown. This is the usual jack construction, and it is thought that the foregoing description is suiiicient.

Rigidly mounted upon the upper end of the screw 13 is a head or block 17, the upper face of which may be knurled for engagement with the load to be lifter when the device is used as an ordinary lifting jack. The block 17 is provided upon its opposite faces with grooves 18, for the reception of the edges of a transverse coupling 19, having an opening or notch 20. It is thus seen that the coupling 19' has a detachable locking en gagement with the block 17, so that the coupling may be moved in either direction with the block, and may be readily separated from the block, when desired. This block 19 is included :in a tire engaging element, embodying straps or arms 21,"hinged to the coupling 19, as shown at 22. At their outer ends, the straps or arms 21, have rim engaging portions. 'Each rim engaging portion embodies a transverse base 23, having a jaw 24 formed integral therewith, provided at its end with an overhanging hook or part 25, whereby it may have secure engagement over the edge of the rim, as clearly shown in Figure 6. This hook 25 engages'the rim when the rim is being contracted. VVhen'the rim is being expanded, the base of the rim engages the base 23, and the lateral displacement of the rim is prevented by the jaw 24 and an extension or lug 26, at the opposite end of. the base 23.

The numeral 27 designates a coact-ing rim engaging element, to engage with the rim at a pointdiametrically opposite from its first rim engaging enter an opening 30 in thcstandard 10. The

upper-end of the body portion 27 is tapered, and the combined width of the extension or bolt 29 and the tapered end of the body portion 27 is equal to the width of the body portion 27 at its center, whereby the end of the body portion equipped with the bolt 29 may be passed through the opening 218, and removed therefrom. The body portion 27 is provided at its lower end with a hook or jaw 81 for engagement with the edge of the rim. The body portion 27 is further provided with an arm or base 82, at a right angle thereto, which is equipped at its opposite end with a jaw or extension 83. hen the device is used to expand the rim, the base of the rim engages the base 32 and the rim is held between the body portion 27 and the jaw 33. From the foregoing description, it is obvious that the element 27 may be readily applied to and removed from the standard 10 and its base.

In the use of the apparatus, the coupling 19 is applied to the block or head 18, and the jaws 25 are placed in engagement with the rim, preferably near its split end, and the element 27 is applied to the stand ard, and its jaw 31 engaged over the rim, preferably diametrically opposite the first named jaws. The gear 14 is now turned to draw the screw 13 inwardly with respect to the standard and hence the rim is contracted. When it is desired to expand the rim, the gear 14 is turned tomove the screw 13 outwardly, and the bases 23 and 32 engage with the bases of the rim, forcing them outwardly. WVhen the device is removed from the rim, the rim engaging elements are separated from the jack, and may be folded in a Hat condition in the tool boX of an automobile or the like,'with the jack.

It'is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of partsmay be resorted to, without departing from the spirit of my invention, or the scope of the sub joined claims.

Having thus described my invention, I claim:

1. In a device of the character described, as a subcombination, a rim engaging element embodying a bar provided at one end with a laterally extending bolt and at its opposite end with a rim engaging jaw, and a base secured to the bar between its ends.

2. The combination with a standard of an element to move longitudinally thereof, a head secured to the element and having side faces provided with grooves, a coupling having a notch for engagement within the grooves of the head for eifecting a detachable interlocking engagement therewith,

arms hinged to the coupling and provided with rim engaging aws, and a rim engaging element detachably secured to the standard.

3. The combination with a standard of an element to move longitudinallv thereof, a head carried by the element, and provided with grooves, a coupling having a notch for receiving the grooved portion of the head for effecting an interlocking detachable engagement therewith, arms hinged to the coupling and provided with rim engaging jaws, a base carried by the standard and having an opening formed therein, said standard also having an opening in its side, a rim engaging element embodying a bar to be inserted through the opening in the base and carrying a laterally extending bolt to detachably enter the opening in the stand ard, said bar having a jaw to engage the rim.

4:. In a device of the character described, a standard having a base, said base having an opening formed therein. and the standard having an opening in its side. a longitudinally movable element carried by the standard, means to move the element, a rim engaging element embodying a bar to be passed through the opening in the base and having a bolt near one end thereof to enter the opening in the standard, said bar being provided near its opposite end with :1 rim engaging jaw, and a coacting rim engaging element connected with the longitudinally movable element.

5. In a device of the character described, as a subcombination, a rim engaging element embodying a base having :1 jaw formed upon one end of the base and provided with an overhanging hook. said base being provided at its opposite end with an outwardly projecting stop.

6. In a device of the character described, a standard having a base, said base having an opening formed therein. and the. standard having an opening in its side. a longitudinally movable element carried by the standard, means to move the element, a rim engaging element embodying a bar to be passed through the opening in the base and havinga bolt to enter the opening in the standard, said bar being provided at its end with a rim engaging jaw, and a coacting rim engaging element connected with the longitudinally movable element.

7. In a device of the character described, as a subeombination, a rim engaging element embodying a bar provided at one end with a laterally extending bolt and at its opposite end with a rim engaging jaw, and a base secured to the bar between its ends, said base having an outwardly extending jaw at its free end.

In testimony whereof I afiix my signature.

MERLE S. MENTZ ER. 

